Pull-rod guide



W E- BROWN PULL R01) GUIDE Filed Aug. 23, 1925 .59 a post.

Patented Feb. 2-22, 1927.

' UNITED STATES WILLIAM E. BROWN, OF GOALINGA, CALIFORNIA.

PULL-non GUIDE.

Application filed August 23, 1926. Serial No. 130,941.

This invention relates to deep well pumping apparatus and particularly pertains to guide means for guiding the pull rods of central power plant installations.

5 1 As is well known, it is the practice in low producing oil fields to provide. a single.

ower plant for a group'of adjacent'wells.

his power plant is connected with thepumping'jack of each well by a cable com- 1 monly termed a pull rod. In some instances the-wells are located ata considerable distance from the power plant, necessitating the provision of some guide means for prop-V erly supporting and guiding the pull rod. Prior tomy invention blocks of wood were arranged on upright supports over which the pull rod was led. Due to dust and other- .gritty substances accumulating on this support, considerable friction resulted and con- 20 sequently caused a loss in efficiency of the plant. V V

It is the principal object of the present invention to provide a pull rod guide of simple and inexpensive construction and wherein the friction losses will be negligible.

In carrying out this object into practice I provide a bearingadapted to be supported in an upright position and upon which-the pull rod may bear. This bearing is so con- 3 structed that the wear on the pullrod an bearing will be miminized. One form which he invention may assume is exemplified in the following description and illustrated by way of example in the accompanying drawings, in which:

Fig. 1 is a front elevation of a bearing embodying the preferred form of my invention. Fig. 2 is a vertical section taken on line II-II ofFig. 1. 1

Fig. 3 is a front elevation of a bearing embodying a slight modification of the invention.

Referring more particularly to the accompanying drawings, I'show an upright support 10 which may be arranged at intermediate points between the power plant and the well. In Fig. 1 this support is shown as a pipe, whereas in Fig. 3 it is disclosed as Reference being had to Fig. 1 it is seen that at the top of the support 10 a bearing '11 is provided. The lower endof this bearing 11 is cylindrical and is provided with .55 a downwardly projecting shank 12 of reduced diameter. The diameter of this shank 12 agrees with the interior diameter of the support 10 so that it may. be projected therein and securely bolted or otherwise fastened to the support. I

The upper end of the bearing member 11 is substantially U-shaped and is formed with a socket 14 which extends downwardly from its upper end intermediate the Side walls of the bearing. This socket 1a is substantially rectangular and is adapted'to snugly receive a bearing'plate 15, which agrees in" size and configuration with the socket 14;

This bearing plate 15 is flat as disclosed in theldrawings, and its upper and lower ends are recessed to accommodate the pull rod in-- dicated by the numeral 16. The recesses in the ends of the bearing are located substantially at the center of the bearing plate as disclosed. These recesses are slightly larger than the pull rod so that the latter may freely reciprocate therethrough, while bearing 011 the lower surfaces of the recesses.

At the center of the recess at each end of the bearing, a small pocket lfi is formed, which may be packed with graphite or other lubricant. The lubricant in these pockets will readily transfer to the pull rod to lubricate the bearing surfaces between it and the bearing plate 15. l

It is intended that the bearing plate 15 be of lignum vitee or other anti-friction material having good wearing qualities; The purpose of forming recesses in both the upper and lower ends of the bearing plate 15 is that when one end becomes worn, the bearing plate may be removed from the bear.- ing block and inverted to provide a second or new bearing surface. When both ends become worn the bearing plate 15 may be removed and discarded, and a new one substituted therefor, thus, keepingv the cost of upkeep of the apparatus ata minimum.

In Fig. 3 the only difference between the device disclosed there and that disclosed in Fig. 1 is that the bearing 11 may be connected to the side of a square post or upright. This is desirable in certain installa- .tions Where two or more pull rods extend n the same directions at different levels.

Thus, one post may support one or more bearings.

In operation of therdevice the uprights 10 are located at spaced. distances between the power plant and the pumping jack with the bearing 11 disposed substantially at right angles to the line of pull of the rods. Lubricant, such as graphite, is then packed in the pocket 16 and the pull rod is extended through the recesses in the bearing plate 15. As the bearing plate is comparatively thin, the bearing si'iritace between it and the pull rod small, reducing the :l'riction therehetween. hen one end oil the bearing plate 15 becomes woriu it may he reversedto present a new bearing); surface to the pull rod. hen hoth ends heconie worn. the hearing, plate 15 may he ren'ioved and discarded and a new hearingplate inserted in the hearing 11. As these hearing" plates are comparatively inexpensive in construction, the cost of upkeep of the apparatus will he cmnparalively small.

\Vhile I have shown thepre'terred form ot' my invention, it is to he understood that various changes may he made in its construction hy those skilled in the art, without departing from the spirit of the invention, as defined in the appended claims.

Havingrlhus descrihed my inventii'in, what I claim and desire to secure by Letters Patent is:

1. A device oi the character described comprising a hearing adapted to he arranged upon an upright support. said hearing having a socket termed inwardly from the upper end thereof, a hearing plate adapted to tit within said sockela the opposite ends of said bearing plate heing recessed, one recessed end being presented and upon which a pull rod may hear and rcciprocati-i.

2. A device of the character described con prisiup, a hearing adapted to he arranged upon an upright support, said hearing having a socket formed inwardly from the upper end thereof, a bearing plate adapted to lit within said socket, the opposite ends of said bearing plate being rccessech one recessed end heing presented and upon which a pull rod may bear and reciprocate, and a luhricant pocket LlOlDlQCl in said hearing plate in communication with said recesses for distributing; lubricant to the pull rod.

A device of the character described comprising a bearing adapted to be arranged on an upright support, the upper end of said hearing being suhstantiall U-shaped a socket formed in said bearing and extending downwardly from the upper end and hrtwecn the side walls oli the hearing, a hearing plate of a size and configuration agreeing with said socket and aoaptcd to he rcniovalaly inserted thereliu the opposite ends of said hearing plate being recessed to acconinunlate a pull rod, and a lubricant pocket at the center and inner extremity of each recess.

r device ol the cl'uiracter described comprising a hollow upright support, a hearing} a down ardly extending shank on the hearing adapted to he proiected within the upper end of said support to support the hearing on said support, said hearing havinn a substantially llat upper end adapted to he arranged at right angles to a, pull rod to he supported thereon, said upper end ol the hearing being suhstzuitially U-shaped and having a socket extending downwardly from the upper end thereof between its side walls, a flat hearing plate of a size and configuration agreeing: with said socket and adapted to be reinovahly inserted in said socket, the opposite ends of said hearing; heine' recessed to acwnnnodate a pull rod, and a lubricant pocket in con'niuinication with each recess to lubricate the pull rod as it bears on the hearing plate.

WILLIAM E. BROWN. 

